题目

如图，正五边形ABCDE和正三角形AMN都是⊙O的内接多边形，则∠BOM＝_______. 答案：【答案】48°【解析】连接OA，分别求出正五边形ABCDE和正三角形AMN的中心角，结合图形计算即可．连接OA，∵五边形ABCDE是正五边形，∴∠AOB==72°，∵△AMN是正三角形，∴∠AOM==120°，∴∠BOM=∠AOM-∠AOB=48°，故答案为：48°．Mary is an English girl. She’s six years old(岁). Her mother takes her to school in the morning and brings her home in the afternoon. She likes her nice school. She likes her teachers, too.One day, she says (说) to her mother, “ Mom, we have a new girl in our class today, Her name is Kim. She’s six years old , too. She’s very nice, but she isn’t English. She is German(德国人)”.“Does she speak (说) English ”?“No, but she laughs(笑) in English ”, Mary says happily(高兴地) .1.Mary is ___________ years old.A. seven B. six C. eight D. five2.__________ takes Mary to school every day.A. Her father B. Her sisterC. Her mother D. Her brother3.Mary _______ her nice school.A. likes B. doesn’t likeC. can’t go to D. go to4.Kim __________ speak English .A. can B. can’tC. doesn’t like to D. like to5. Kim is _____________.A. English B. German C. five D. Japan